EP1588900A1 - Vorrichtung zum Auslesen von Sensoren im Motorraum eines Kraftfahrzeuges - Google Patents
Vorrichtung zum Auslesen von Sensoren im Motorraum eines Kraftfahrzeuges Download PDFInfo
- Publication number
- EP1588900A1 EP1588900A1 EP05003014A EP05003014A EP1588900A1 EP 1588900 A1 EP1588900 A1 EP 1588900A1 EP 05003014 A EP05003014 A EP 05003014A EP 05003014 A EP05003014 A EP 05003014A EP 1588900 A1 EP1588900 A1 EP 1588900A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sensor
- coil
- reading
- motor vehicle
- sensors
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005259 measurement Methods 0.000 claims description 18
- 230000005540 biological transmission Effects 0.000 claims description 11
- 239000012528 membrane Substances 0.000 claims description 8
- 230000008054 signal transmission Effects 0.000 claims description 3
- 238000012546 transfer Methods 0.000 abstract description 13
- 239000003921 oil Substances 0.000 description 18
- 239000007788 liquid Substances 0.000 description 13
- 238000005516 engineering process Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- LJOOWESTVASNOG-UFJKPHDISA-N [(1s,3r,4ar,7s,8s,8as)-3-hydroxy-8-[2-[(4r)-4-hydroxy-6-oxooxan-2-yl]ethyl]-7-methyl-1,2,3,4,4a,7,8,8a-octahydronaphthalen-1-yl] (2s)-2-methylbutanoate Chemical compound C([C@H]1[C@@H](C)C=C[C@H]2C[C@@H](O)C[C@@H]([C@H]12)OC(=O)[C@@H](C)CC)CC1C[C@@H](O)CC(=O)O1 LJOOWESTVASNOG-UFJKPHDISA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229940127204 compound 29 Drugs 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
- G01F23/64—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements
- G01F23/68—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements using electrically actuated indicating means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/04—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by dip members, e.g. dip-sticks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/296—Acoustic waves
- G01F23/2962—Measuring transit time of reflected waves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/80—Arrangements for signal processing
- G01F23/802—Particular electronic circuits for digital processing equipment
Definitions
- the invention relates to a device for reading sensors in the Engine compartment of a motor vehicle.
- sensors for detecting various Components and levels are provided.
- sensors for level determination of liquids for example fuel.
- the rule is the level or the level of the respective liquids measured. It is also known for some of these fluids Condition measurement.
- the of the respective sensors data received are usually via cable lines to central or decentralized computing units forwarded.
- the invention is based on the object, a device of the above called type to create, with the sensors in the engine compartment of a Motor vehicle can be easily read.
- a device for reading sensors in a motor vehicle in the sensor to be read is assigned a transponder, In particular, has a transponder, the motor vehicle for Energy transmission provided coil and the motor vehicle for the sensors to be read out has a reading antenna is according to the invention provided that on the hood, in particular at the bottom of the Bonnet, provided for energy transfer coil, in particular centrally or symmetrically, is arranged and on the hood or on the Bottom of the hood for the sensors to be read Reading antenna is arranged.
- Such inventive Device in which the sensor is designed as a transponder is a weight reduction, compared to conventional level systems simplified final assembly of the vehicle, a simplified disassembly of the Vehicle, greater design freedom, increased service comfort and Overall, a smaller number of components and thus lower Component costs and a lower number of system failures achieved.
- the device is preferred as RFID (Radio Frequency Identification) technique executed.
- sensors are to be read in the engine compartment of a motor vehicle become. Of particular importance are the sensors in the area of Engine compartment. Basically, sensors can also be used with the invention are detected, which are arranged outside the engine compartment.
- the engine compartment provided for energy transfer coil identical to the reading antenna to read the sensor or sensors.
- the energy transfer coil is separate from or to train the reading antennas, so that it so at least two separate coils act.
- Particularly preferred is for everyone in the Engine compartment arranged sensor to be read an associated Reading antenna available.
- the reading antennas are preferred as coils educated.
- the reader antennas are conveniently each direct arranged above the respective sensor to be read. It is the to Energy transfer coil provided in their dimensions Conveniently to the dimensions of the engine compartment or in particular the hood adapted and thus formed as large as possible and can create a particularly good energy transfer this way.
- the Read antennas are preferably within the power transmission arranged coil arranged.
- a central reader arranged with the coil for Energy transmission and a reading antenna is connected.
- the sensors are preferably arranged on floats.
- the sensors can measure the level of different liquids sensing. This can be, for example, wiping water, cooling fluid, servo oil, Brake fluid, engine oil, battery acid, transmission oil, hydraulic oil, refrigerant and / or fuel.
- the sensor performs a direct measurement of the float level. at Such a direct measurement is a distance measurement between the Sensor or a transponder chip arranged therein and the assigned reading antenna performed. That is, that of the Transponder emitted and received by the reading antenna signal his distance-related change is evaluated. In dependence of This can be a change of the vibration, the Frequency and / or the amplitude.
- the senor performs an indirect measurement of the float level.
- an ultrasonic sensor or another sensor is in the sensor integrated, the float height to the bottom of the liquid-filled Vessel measures and the result determined thereby to the reading antenna transfers. This is done by measuring the ultrasonic sensor changed signal emitted by the transponder. In particular is preferred a change in frequency. But also changes in the amplitude are conceivable.
- each ultrasonic sensor has a transmitting membrane and a receiver membrane.
- the ultrasonic sensors are preferably in Microsystem technology executed.
- the receptor membrane is preferably annular or circular or honeycomb-shaped and within a arranged annular transmitting membrane.
- the sensor signal in addition to the Quality of the detected by the sensor signal medium are evaluated.
- the Term within the medium is in addition to the track to be covered also depending on the medium itself or the quality of the medium and leaves therefore, by direct measurement of known height or position of the sensor an evaluation regarding the quality of the detected medium.
- the sensor can also be used to carry out other components Have measurements of the medium quality.
- the oil sensor is an additional Assigned signal transmission device. This in particular because the oil sensor is typically located below an engine block and thereby a direct detection of the arranged in the oil sensor sensor is not possible by the arranged in the hood reading antennas.
- the signal transmission device is preferably designed such that in the engine compartment in the area of the oil sensor assigned to the Bonnet arranged reading antenna, a coil and a second Leseannene are arranged and that the coil with a second coil in the Area of the oil sensor is connected.
- the compound is preferred between the first coil and the second coil via an oil dipstick executed. This gives the oil dipstick a double function.
- the oil level is measured during operation is by the oil dipstick provided here also in addition the measurement of Oil level in the idle state of the engine further possible and offers the well-known Help with refilling oil.
- Fig. 1 is a perspective view of a motor vehicle 1 with the hood 2 open shown.
- an engine compartment 3 are usually a variety of Provided sensors that serve in particular, the level of to control different liquid containers.
- a central reader 5 which is in the body of the Motor vehicle 1 is arranged.
- a central antenna 4 is shown, the comparatively is formed large and can be made even larger, so that they extends almost over the entire underlying engine compartment 3.
- This central antenna or power coil 4 is used to power the arranged in the engine compartment 3 sensors, in particular of the Transponder chips.
- Signal reading antennas 6 and 7 are shown, as directly as possible in the Engine compartment 3 arranged sensors are placed. These serve for Reading from the sensors, in particular the transponder chips, emitted signals.
- the signal reading antennas 6 and 7 are also with the central reader 5 in data connection.
- the central reader 5 is in the Body arranged the motor vehicle. In the area below is the Bonnet 2 reproduced. On the underside of the hood 2 is the central power coil 4 and a plurality of signal reading antennas arranged. Here are exemplarily three signal reading antennas 6, 7, and 8 shown. Conveniently, each sensor to be read is exactly one Signal antenna assigned as directly as possible above this sensor is arranged. The signal reading antennas 6, 7 and 8 are the same as the central power coil 4 connected to the central reader 5.
- in the Engine compartment 3 are a plurality of liquid container 9, 10 and 11 schematically indicated in which in a dedicated device 20 each one Floats 12, 13, 14 according to the level height in the respective Container 9, 10, 11 up or abtwreibt.
- a sensor 15 is arranged, which is associated with the respectively associated Signal antenna communicates.
- the level height must can be determined, resulting from the distance of the sensor 15 to Detect container bottom.
- the position of the total with 20 designated level measuring device is known in which the float 12, 13, 14 move, the level height can also over the distance of the Sensor 15 to the bottom of the device to which a reflector 16 is arranged is to be determined.
- the distance between sensor 15 and reflector 16 can once by a direct measurement of the distance between sensor 15 and the associated signal antenna antenna can be determined. Alternatively, this can be also with a distance measurement between sensor 15 and reflector 16 take place, this result then from the sensor 15 to the Signal antenna is transmitted.
- the liquid container 11 is a Represent fluid reservoir for oil, which is located below the engine is, so that a direct communication between the sensor 15 of Float 14 and the signal antenna 8, which is arranged above not possible.
- a decentralized energy coil 24 with the central Power coil 4 communicates, and a decentralized signal read antenna 28 provided communicating with the signal antenna 8.
- the decentralized coil 24 is arranged with a below the engine compartment decentralized coil 34, via which the energy transfer to Sensor 15 of the float 14 takes place.
- a decentralized Signal antenna 38 is provided, which also via the connection 29 with Signal antenna 28 is connected. That of the sensor 15 of the float 14th emitted signal is therefore first of the decentralized Signal antenna 38 recorded, via the connection 29 to the decentralized signal antenna 28 given and there by the Signal reading antenna 8 read and then to the central reader 5 passed.
- a liquid container 9 is disposed therein Level measuring device 20 shown.
- An enlarged section of the Level measuring device 20 is shown in Fig. 4.
- the liquid container 9 serves to hold a liquid, such as water.
- the Liquid should be between a lower minimum level 19 and an upper maximum level 18.
- the level is determined with the help of Level measuring device 20 controlled.
- the level measuring device 20 designed as a tubular sleeve housing 17, in a Float 12 is arranged, the up and down according to the level slides.
- a sensor 15th In the lower end region of the housing 17 is a reflector 16th arranged.
- a transit time measurement 21 between the sensor 15 and the reflector 16 can provide a measure of the distance between the sensor 15 and the reflector 16.
- a signal h ⁇ f read which emanates from the power coil 4, received by the sensor and changed according to the runtime measurement performed as h ⁇ f Trans , denoted by 23, emitted by the sensor 15 and the signal reading antenna added.
- the direct distance between the sensor 15 and the signal reading antenna 6 can also be measured.
- the float 12 of the level measuring device 20 also has an annular metal shell 27.
- FIG. 5 shows an ultrasound sensor 15 in microsystem technology for carrying out the transit time measurement shown.
- An outer part of a membrane, the ring-like is formed, is formed as a transmitter 25, and an inner part of a Membrane is designed as a receiver 26.
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Acoustics & Sound (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
Description
- Fig. 1:
- eine perspektivische Ansicht eines Kraftfahrzeuges mit geöffneter Motorhaube;
- Fig. 2:
- eine schematische Gesamtansicht der Vorrichtung;
- Fig. 3:
- einen Flüssigkeitsbehälter mit einem Sensor;
- Fig. 4:
- einen vergrößerten Ausschnitt gemäß Fig. 3; und
- Fig. 5:
- eine Prinzipskizze eines in Mikrosystemtechnik aufgebauten Ultraschallsensors.
Claims (16)
- Vorrichtung zum Auslesen von Sensoren (15) in einem Kraftfahrzeug (1), wobei jedem Sensor (15) ein Transponder zugeordnet ist, das Kraftfahrzeug (1) eine zur Energieübertragung vorgesehene Spule (4) aufweist und das Kraftfahrzeug (1) für die auszulesenden Sensoren (15) mindestens eine Leseantenne (6, 7, 8) aufweist,
dadurch gekennzeichnet, daß zum Auslesen der Sensoren (15) im Motorraum (3) des Kraftfahrzeuges (1) die zur Energieübertragung vorgesehene Spule (4) an der Motorhaube (2) des Kraftfahrzeuges (1) angeordnet ist und
daß die mindestens eine Leseantenne (6, 7, 8) für die auszulesenden Sensoren (15) an der Motorhaube (2) des Kraftfahrzeuges (1) angeordnet ist. - Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die zur Energieübertragung vorgesehene Spule (4) als separate Spule zusätzlich zu den Signalleseantennen (6, 7, 8) ausgebildet ist.
- Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß jedem Sensor (15) eine eigene Signalleseantenne (6, 7, 8) zugeordnet ist.
- Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Leseantennen (6, 7, 8) als Spulen ausgebildet sind.
- Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Leseantennen (6, 7, 8) jeweils direkt oberhalb des jeweils auszulesenden Sensors (15) angeordnet sind.
- Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die zur Energieübertragung vorgesehene Spule (4) in ihren Abmessungen an die Abmessungen des Motorraumes (3) angepaßt ist.
- Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Leseantennen (6, 7, 8) innerhalb der zur Energieübertragung vorgesehenen Spule (4) angeordnet sind.
- Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß in dem Kraftfahrzeug (1) ein zentrales Lesegerät (5) angeordnet ist, das mit der Spule zur Energieübertragung (4) und allen Leseantennen (6, 7, 8) verbunden ist.
- Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Sensoren (15) an einem Schwimmer (12, 13, 14) angeordnet sind.
- Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß ein Sensor (15) eine direkte Messung des Schwimmerstandes durchführt.
- Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß ein Sensor (15) eine indirekte Messung des Schwimmerstandes durchführt.
- Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Sensoren (15) eine Sendemembran (25) und eine Empfängermembran (26) aufweisen.
- Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Sensorsignal hinsichtlich der Qualität des vom Sensorsignals erfaßten Mediums auswertbar ist.
- Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß ein Sensor (15) als Ölsensor ausgebildet ist und daß dem Ölsensor eine Signalübertragungseinrichtung zugeordnet ist.
- Vorrichtung nach Anspruch 14, dadurch gekennzeichnet, daß im Motorraum im Bereich der dem Ölsensor (15) zugeordneten, an der Motorhaube (3) angeordneten Leseantenne (8), eine Spule (24) und eine zweite Leseantenne (28) angeordnet sind und daß die Spule (24) mit einer zweiten Spule (34) im Bereich des Ölsensors verbunden ist.
- Vorrichtung nach Anspruch 15, dadurch gekennzeichnet, daß die Verbindung zwischen der ersten Spule und der zweiten Spule über einen Ölpeilstab erfolgt.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004019572 | 2004-04-22 | ||
DE102004019572A DE102004019572A1 (de) | 2004-04-22 | 2004-04-22 | Vorrichtung zum Auslesen von Sensoren im Motorraum eines Kraftfahrzeuges |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1588900A1 true EP1588900A1 (de) | 2005-10-26 |
EP1588900B1 EP1588900B1 (de) | 2007-05-09 |
Family
ID=34933730
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05003014A Active EP1588900B1 (de) | 2004-04-22 | 2005-02-12 | Vorrichtung zum Auslesen von Sensoren im Motorraum eines Kraftfahrzeuges |
Country Status (5)
Country | Link |
---|---|
US (1) | US7336160B2 (de) |
EP (1) | EP1588900B1 (de) |
AT (1) | ATE361862T1 (de) |
DE (2) | DE102004019572A1 (de) |
ES (1) | ES2287821T3 (de) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006004443A1 (de) * | 2006-01-31 | 2007-08-09 | Siemens Ag | Verfahren und System zur Erfassung von Ausrüstungsgegenständen von Einsatzwagen und Einsatzwagen |
WO2008138823A1 (de) * | 2007-05-10 | 2008-11-20 | Siemens Aktiengesellschaft | Vorrichtung zum überwachen eines energiespeichers |
FR2916845A1 (fr) * | 2007-05-30 | 2008-12-05 | Antoine Scibetta | Dispositif pour controles tous niveaux de liquide a distance |
EP3211387A1 (de) * | 2016-02-26 | 2017-08-30 | Krohne Messtechnik GmbH | Messstab für den nachweis eines strömenden mediums in einem rohr und diesbezügliche messanordnung |
DE102019101675A1 (de) | 2018-01-26 | 2019-08-01 | Kunststoff Schwanden Ag | Mess-Deckel zum Verschließen einer Deckelöffnung von Flüssigkeitsbehältnissen, Diagnosesystem und Kraftfahrzeug mit einem solchen Diagnosesystem |
DE102019101674A1 (de) | 2018-01-26 | 2019-08-01 | Otto Altmann | Mess-Deckel zum Verschließen einer Deckelöffnung von Flüssigkeitsbehältnissen, Diagnosesystem und Kraftfahrzeug mit einem solchen Diagnosesystem, sowie Leit- und/oder Steuerungseinrichtung für zumindest ein Kraftfahrzeug |
US11976955B2 (en) | 2018-09-21 | 2024-05-07 | Ecolab Usa Inc. | Portable fluid level monitoring device and method |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004061439A1 (de) * | 2004-12-17 | 2006-07-13 | Claas Selbstfahrende Erntemaschinen Gmbh | Datengenerierungs- und -übertragungssystem in landwirtschaftlichen Arbeitsmaschinen |
DE102006009555A1 (de) * | 2006-02-28 | 2007-08-30 | Siemens Ag | Verfahren und System zur Ermittlung des Elektrolytfüllstandes einer Bleibatterie |
EP2759493B1 (de) | 2013-01-29 | 2015-11-25 | Braun GmbH | Anordnung eines verpackten Artikels |
EP3225959B1 (de) * | 2016-03-31 | 2019-08-14 | Volvo Car Corporation | Vorrichtung zur bestimmung eines flüssigkeitsfüllstands in einem behälter |
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EP0563713A2 (de) * | 1992-04-01 | 1993-10-06 | Hughes Aircraft Company | Fernfühlersystem zur Identifikation |
EP1022548A1 (de) * | 1999-01-19 | 2000-07-26 | Volkswagen Aktiengesellschaft | Niveauschalter |
WO2001044758A2 (en) * | 1999-12-17 | 2001-06-21 | J & M Holding B.V. | System for measuring a parameter within a closed environment |
WO2001084090A1 (en) * | 2000-04-28 | 2001-11-08 | Ssi Technologies, Inc. | Fuel optimization system with improved fuel level sensor |
WO2003042573A2 (de) * | 2001-11-10 | 2003-05-22 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Fahrzeugsysteme |
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US4075632A (en) * | 1974-08-27 | 1978-02-21 | The United States Of America As Represented By The United States Department Of Energy | Interrogation, and detection system |
ZA888681B (en) * | 1987-11-18 | 1990-07-25 | Uniscan Ltd | Transponder |
DE4334595C1 (de) * | 1993-10-11 | 1995-04-27 | Siemens Ag | Steuerung für ein Kraftfahrzeug |
US5421193A (en) * | 1993-12-30 | 1995-06-06 | Proeco, Inc. | Method and apparatus for leak detection with float excitation and self-calibration |
DE19729959C5 (de) * | 1997-07-12 | 2006-06-08 | Conti Temic Microelectronic Gmbh | Brennkraftmaschine mit von einer Zentraleinheit gesteuerten elektronischen Komponenten |
CN1553867A (zh) * | 2001-10-31 | 2004-12-08 | ��������ķ������ | 轮胎气压监测系统 |
-
2004
- 2004-04-22 DE DE102004019572A patent/DE102004019572A1/de not_active Withdrawn
-
2005
- 2005-02-12 AT AT05003014T patent/ATE361862T1/de not_active IP Right Cessation
- 2005-02-12 DE DE502005000679T patent/DE502005000679D1/de active Active
- 2005-02-12 EP EP05003014A patent/EP1588900B1/de active Active
- 2005-02-12 ES ES05003014T patent/ES2287821T3/es active Active
- 2005-04-13 US US11/105,299 patent/US7336160B2/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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EP0563713A2 (de) * | 1992-04-01 | 1993-10-06 | Hughes Aircraft Company | Fernfühlersystem zur Identifikation |
EP1022548A1 (de) * | 1999-01-19 | 2000-07-26 | Volkswagen Aktiengesellschaft | Niveauschalter |
WO2001044758A2 (en) * | 1999-12-17 | 2001-06-21 | J & M Holding B.V. | System for measuring a parameter within a closed environment |
WO2001084090A1 (en) * | 2000-04-28 | 2001-11-08 | Ssi Technologies, Inc. | Fuel optimization system with improved fuel level sensor |
WO2003042573A2 (de) * | 2001-11-10 | 2003-05-22 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Fahrzeugsysteme |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006004443A1 (de) * | 2006-01-31 | 2007-08-09 | Siemens Ag | Verfahren und System zur Erfassung von Ausrüstungsgegenständen von Einsatzwagen und Einsatzwagen |
WO2008138823A1 (de) * | 2007-05-10 | 2008-11-20 | Siemens Aktiengesellschaft | Vorrichtung zum überwachen eines energiespeichers |
FR2916845A1 (fr) * | 2007-05-30 | 2008-12-05 | Antoine Scibetta | Dispositif pour controles tous niveaux de liquide a distance |
EP3211387A1 (de) * | 2016-02-26 | 2017-08-30 | Krohne Messtechnik GmbH | Messstab für den nachweis eines strömenden mediums in einem rohr und diesbezügliche messanordnung |
DE102019101675A1 (de) | 2018-01-26 | 2019-08-01 | Kunststoff Schwanden Ag | Mess-Deckel zum Verschließen einer Deckelöffnung von Flüssigkeitsbehältnissen, Diagnosesystem und Kraftfahrzeug mit einem solchen Diagnosesystem |
DE102019101674A1 (de) | 2018-01-26 | 2019-08-01 | Otto Altmann | Mess-Deckel zum Verschließen einer Deckelöffnung von Flüssigkeitsbehältnissen, Diagnosesystem und Kraftfahrzeug mit einem solchen Diagnosesystem, sowie Leit- und/oder Steuerungseinrichtung für zumindest ein Kraftfahrzeug |
US11976955B2 (en) | 2018-09-21 | 2024-05-07 | Ecolab Usa Inc. | Portable fluid level monitoring device and method |
Also Published As
Publication number | Publication date |
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DE102004019572A1 (de) | 2005-11-10 |
US7336160B2 (en) | 2008-02-26 |
ATE361862T1 (de) | 2007-06-15 |
ES2287821T3 (es) | 2007-12-16 |
US20050237169A1 (en) | 2005-10-27 |
EP1588900B1 (de) | 2007-05-09 |
DE502005000679D1 (de) | 2007-06-21 |
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